Transport in very dilute solutions of He-3 in superfluid He-4
2013 (English)In: Physical Review B. Condensed Matter and Materials Physics, ISSN 1098-0121, E-ISSN 1550-235X, Vol. 88, no 1, 014512- p.Article in journal (Refereed) Published
Motivated by a proposed experimental search for the electric dipole moment of the neutron (nEDM) utilizing neutron-He-3 capture in a dilute solution of He-3 in superfluid He-4, we derive the transport properties of dilute solutions in the regime where the He-3 are classically distributed and rapid He-3-He-3 scatterings keep the He-3 in equilibrium. Our microscopic framework takes into account phonon-phonon, phonon-He-3, and He-3-He-3 scatterings. We then apply these calculations to measurements by Rosenbaum et al. [J. Low Temp. Phys. 16, 131 (1974)] and by Lamoreaux et al. [Europhys. Lett. 58, 718 (2002)] of dilute solutions in the presence of a heat flow. We find satisfactory agreement of theory with the data, serving to confirm our understanding of the microscopics of the helium in the future nEDM experiment.
Place, publisher, year, edition, pages
2013. Vol. 88, no 1, 014512- p.
Condensed Matter Physics
IdentifiersURN: urn:nbn:se:su:diva-92796DOI: 10.1103/PhysRevB.88.014512ISI: 000321925400002OAI: oai:DiVA.org:su-92796DiVA: diva2:642773
NSF: PHY-0701611, PHY-0855569, PHY-0969790, PHY-1205671, PHY-10662922013-08-232013-08-202013-12-11Bibliographically approved